Not great. Promos look better than the actual product. This is implemented as a plugin, which makes it awkward to use the assets. Spline tools for sidewalks and railings looks like a great idea, but sadly doesn’t actually work.
Documentation is available here: https://drive.google.com/file/d/1mA4Wafi5FOq7dnxrNxMzdMMirDeFwFhT/view?pli=1